[](https://www.npmjs.com/package/holocron) > Use this to compose and load your application modules. ## 📖 Table of Contents * [Features](#-features) * [API](#%EF%B8%8F-api) * [Available Scripts](#-available-scripts) ## ✨ Features ### How it works #### Module Registry Holocron maintains an in-memory registry of Modules that can be updated dynamically without requiring a server restart. The idea is that an application can update Holocron's module registry whenever a new Holocron Module is to be added to the application's runtime. The end result is an application that can have React components updated/added to it at runtime. #### Holocron store After the server is initialized the holocron store is created within `createHolocronStore`, this extends the Redux store and adds the reducers of your module to the store. #### Compose modules Once the modules to render are retrieved we dispatch `composeModules` to get the data for these modules, this data is needed for rendering. ## 🎛️ API Check out the [API reference guide](./docs/api/README.md). ## 📜 Available Scripts To test out any changes that you've made locally, run `yarn pack` then install this within your application. The scripts below are available to run and use: **`yarn prebuild`** This removes any existing files generated during the build process and ensures that any new build is clean. **`yarn build`** This deletes the current generated JS files within the directory and compiles the ECMAScript 6 code within the `src` file to a version of ECMAScript that can run in current browsers using Babel afterwards it copies them to the lib folder. **`yarn prepublish`** This runs `yarn build` **`yarn watch:build`** This watches for any changes in the `src` folder and runs `yarn build` if any changes are detected.